This document contains contact information for a roofing company in Toronto and Mississauga called IntraGreen Roofing Systems. It includes a checklist for inspecting flat roofs which lists items to examine for things like debris, drainage issues, physical damage, cracks, water leaks and other problems. The checklist is separated into sections for the roof membrane, interior walls, ceilings, exterior walls, roof features and provides space for comments. Definitions are also provided for common roofing terms used in the checklist like asphalt, flashing, gravel stop, ponding, slope and others.

1. Toronto: 416-999-7663
Mississauga: 416-238-6668
1630 Sismet Road Unit 1
Mississauga ON L4W 1R5
Your f inal roofing solut ion.
Flat Roof Insecption Checklist
General Roof Conditions
Item
Interior Wall Surfaces
Remarks
Item
Debris on Roof
Cracks
Drainage
Water Staining
Phsyical Damage
Water Leaks
Attic Conditions
Deformed Finish
Structural Deformation
Seasonal Change
Other
Window Leaks
Flat / Membrane Roof
Remarks
Door/Window Alignment
Item
Remarks
Condition of Coating
Other
Ceiling Conditions
Granular Loss
Item
Punctures
Cracks/Alligatoring
Cracks
Blisters/Fistmouths
Water Staining
Ponding
Water Leaks
Other
Seasonal Change
Roof Features
Remarks
Other
Item
Remarks
Fascia
Summary/Comments
(Highlight areas of concern and any rapid degredation in roof system.)
Soffit
Flashing
Gutters/Drains, etc.
Skylights
Chimneys/Vents
Fall Arrest Anchors
Control Zone Access
Other
Exterior Wall Surfaces
Item
Remarks
Deformed Finish
Surface Deterioration
Staining
Other
This assessment is for informational use only. We are not asking
or advising you to go on your roof. Intragreen Roofing Systems
Inc. does not take any responsibility for any damage, injuries or
death that may occur from use of this assessment.
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2. Toronto: 416-999-7663
Mississauga: 416-238-6668
1630 Sismet Road Unit 1
Mississauga ON L4W 1R5
Your f inal roofing solut ion.
Glossary of Roofing Terms Used in This Checklist
Alligatoring
Shrinkage cracking of the bituminous
surface of built-up or smooth surface
roofing, producing a patter of deep
cracks resembling an alligator hide.
Asphalt
A highly visous hyfrocarbon produced
from the residuum left after the distillation
of petroleum; used as a waterproofing
agent of a built-up roof
Ballast
A spongy raised portion of roofing
membrance as a result of pressure of
entrapped air or water vapour
Built-up
Roofing
(BUR)
A continuous, semi-flexibe roof covering
consisting of laminations of plies of
saturated or coated felts alternated with
layers
Cant Strip
A continuous strip of triangular crosssection, fitted into the angle formed by
a structural deck and a wall or other
vertical surface, and used to provide
gradual transition for base flashing and
horizontal roof membrane.
Fishmouth
An opening of the lapped edge of applied
felt in built-up roofing due to
adhesion failure.
Flashing
Connecting devices that seal membrane
joints, drains, gravel stops and
other places where membrane is
interrupted. Base flashing forms the
upturned edges of the watertight
membrane. Cap or counter flashing
shields the exposed edges and joints of
the base flashing.
Gravel Stop
Flanged device, normally metallic,
designed to prevent loose aggregate
from washing off roof. It also provides a
finished edge detail for built-up
roofing assembly.
High Risk
Roof
A roof which scores 15 or greater out of
20 using the Snow Overload
Risk Assessment checklist.
Modified
Bitumen
Asphalt with the addition of polymer
modifiers to increase cold
temperature flexibility and warm
temperature flow resistance and
stability.
PVC
A generic term for single ply plastic sheet
membrane (poly vinyl chloride); seams
are fused by solvent or hot-air welding
techniques.
Parapet
The part of the wall entirely above the
roof.
Ponding
The collection of water in shallow pools
on the roof surface.
Slope
The ratio between the measures of the
rise and the horizontal span.
Soffit
The finish on the underside of a roof
overhang.
A generic term for asphalt or coal tar
pitch roofing.
Blister
The finish member covering the edge or
eaves of a flat or sloping roof or
roof overhang.
An anchoring material (such as rock,
gravel, pavers) used to resist wind uplift
forces of roof membrane
Bitumen
Fascia
Crack
A break in a roofing membrane as a
result of flexing,
often occurring at a ridge or wrinkle.
EPDM
A synthetic rubber sheet used in single
ply roof membrane (ethylene propylene
diene monomer).
Expansion
Joint
A deliberate separation of two roof
areas to allow expansion and contraction
movements of the parts
Eaves
The protective overhang at the lower
edge of a sloped
roof.
For further information, please contact IntraGreen Roofing Systems Inc. 1630 Sismet Road Unit 1. Mississauga, ON. L4W 1R5
http://roofmaintenance.ca | http://roofscan.ca | http://skylightinstallers.ca
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